Head to head
Crypton Class IV Roller Brake Tester vs Crypton Class VII Roller Brake Tester
The Crypton Class IV Roller Brake Tester is a mot-approved roller brake tester for cars and light vans. The Crypton Class VII Roller Brake Tester is a mot-approved roller brake tester for heavier vehicles.
Last reviewed 13 September 2026
Specifications side by side
| Crypton Class IV Roller Brake Tester | Crypton Class VII Roller Brake Tester | |
|---|---|---|
| Max axle weight | 4000 kg | 4000 kg |
| Max brake force per wheel | 600 kgf | 1250 kgf |
| Test speed | 5 km/h | 2.62 km/h |
| Roller diameter | 182 mm | 200 mm |
| Roller length | 700 mm | 1000 mm |
| Axle width range | 800-2200 mm | 800-2200 mm |
| Supply | 400V 3-phase, 25A fuse | 400V 3-phase, 25A fuse |
| Max control box distance | 12 m from rollers | 12 m from rollers |
| Warranty | 3 years | 3 years |
Sources: Crypton Class IV Roller Brake Tester, Crypton Class VII Roller Brake Tester. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Class IV Roller Brake Tester if...
A Class IV MOT roller brake tester for cars and light vans up to 4 tonnes, testing at 5 km/h with a 700mm roller length. It runs from a 3-phase supply and carries a 3 year warranty. Suits an MOT-approved garage testing standard cars and vans.
Full Class IV Roller Brake Tester specifications →Buy or hire the Class VII Roller Brake Tester if...
A Class VII MOT roller brake tester with a higher 1250 kgf brake force per wheel and longer 1000mm rollers than the Class IV unit, for heavier vehicles at MOT. It tests at a slower 2.62 km/h and shares the same 3-phase supply and 3 year warranty. Suits a garage testing larger vans and light commercials alongside cars.
Full Class VII Roller Brake Tester specifications →Common questions
What is the difference between the Crypton Class IV Roller Brake Tester and the Crypton Class VII Roller Brake Tester?
The Crypton Class IV Roller Brake Tester is a mOT-approved roller brake tester for cars and light vans; the Crypton Class VII Roller Brake Tester is a mOT-approved roller brake tester for heavier vehicles.
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